JPS589029B2 - Vehicle locking device with shock absorber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle stop device with a shock absorber provided at the end of a rail.

Conventionally, a vehicle stopper with a shock absorber installed at the end of a rail at a terminal station consists of a movable member that receives a colliding vehicle at one point via a central coupler or at two points at both ends of the front of the bogie frame; It consists of a shock absorber with a piston structure that cushions the movement of the movable member.

In this case, the movable member is made of a rigid body, so after the vehicle contacts the movable member, it moves at the same speed and the shock absorber acts.
If the mass of the movable member is large, the initial impact when the vehicle collides with the movable member is large, increasing the risk of injury to passengers or luggage, and possibly causing damage to the vehicle.

In addition, if the speed of the vehicle is high during the time it decelerates and stops after colliding with a movable member, if the contact points are one or two points as described above, a large force will be applied to the coupler or bogie. There was a risk of damage to the vehicle.

This invention was made to eliminate these conventional drawbacks, and its purpose is to alleviate the initial impact when a vehicle collides, and also to reduce the impact even when the collision speed of the vehicle is relatively high. To provide a shock absorber/vehicle stopping device which does not cause damage to the vehicle.

In order to achieve such an object, the present invention provides a recess at the center of the front surface of a movable body and a protrusion at both ends of the front surface, and a coupler receiver is provided in the recess so as to be slidable. A spacing member having a certain reaction force against compression is provided between the rear surface of the coupler receiver and the rear surface of the coupler receiver.

Hereinafter, this invention will be explained in detail using examples.

FIG. 1 is a plan view of an embodiment of a vehicle stop device with a shock absorber according to the present invention, FIG. 2 is a side view, and FIG. 3 is a front view.

In the figure, 1 is a vehicle, 2 is a bogie frame of the vehicle 1, 3 is a coupler attached to the center front of the bogie frame 2, and 4 is a coupler 3.
5 is a coupling buffer spring provided in the case 4, and 6 is a metal fitting for attaching the case 4 to the bogie frame 2.

Further, 8 is a movable body, 9 is a shock absorber for absorbing the kinetic energy of the vehicle 1 by absorbing the movement of the movable body 8 in the vehicle traveling direction, and 10 is a rod for connecting the movable body 8 and the shock absorber 9. .

The shock absorber 9 is fixed to the ground or the like.

The movable main body 8 has a recess 8a in the center of the front surface;
Grooves 8b are provided on both sides, and protrusions 8C are provided on both ends of the front surface.

A buffer material 11 made of rubber or the like is provided on the front surface of the protrusion 8C to receive the front surface of the bogie frame 2 of the vehicle 1 when four vehicles are being buffered.

Reference numeral 12 denotes a coupler receiver whose both sides enter the groove 8b and is provided in the recess 8a, and is held in the movable main body 8 so as to be slidable in the vehicle traveling direction.

The front surface of the coupler receiver 12 has a receiving part 12a at the center for receiving the coupler 3 in the event of a vehicle collision, and guide parts at both end parts for guiding the coupler 3 to the center when it is tilted from side to side. 12b are provided respectively.

Moreover, 13 is a spacing member provided between the rear surface of the coupler receiver 12 and the bottom surface of the four parts 8a.

The spacing member 13 is made of thin aluminum plates shaped like a honeycomb, and when compressed, the honeycomb-shaped thin aluminum plates collapse one after another and exhibit a reaction force, but this reaction force is always constant against displacement due to compression.

FIG. 4 is a graph showing the relationship between the displacement of the spacing member 13 and the reaction force.

Even if the displacement changes, the reaction force always remains at a constant value Fo.

Next, the operation of this device will be explained.

As shown in FIG. 1, when the vehicle 1 moves in the direction of the arrow, the tip of the coupler 3 first touches the receiving part 12 of the coupler receiver 12.
a, the coupler receiver 12 is pushed in this direction with a predetermined force.

Here, if the speed of the vehicle 1 is relatively slow, the spacing member 13
At the same time as is compressed, the vehicle 1 generates negative acceleration and is decelerated, and eventually the movable body 8 and the rod 10 move at the same speed as the vehicle 1.

In other words, since the resistance force F of the shock absorber 9 is a function of the moving speed V of the Rondo 10, when the movable body 8 starts moving at the same speed V1 as the decelerated vehicle 1, the vehicle 1 is at a relatively low speed. In the case of a collision at high speed, the reduced speed v1 becomes low and the resistance force F1 of the shock absorber 9 becomes small.

If this resistance force F1 is smaller than the reaction force Fo of the spacing member 13, the spacing member 13 will no longer be compressed, and as the vehicle 1 moves forward, the movable body 8 will move together with it, and this movement will It is transmitted to the buffer 9 via the iron 10.

Therefore, the vehicle 1 gradually reduces its speed and eventually comes to a stop.

FIG. 5 shows this state. In this case, without the spacing member 13, the masses of the movable parts of the movable body 8, rod 10, and shock absorber 9 are large, so when the collision speed is low in the event of a vehicle collision, the compression energy of the spring 5 of the coupler is used. It acts to accelerate the movable body 8 etc. to the same speed as the vehicle, and when the collision speed of the vehicle is high, the energy required to accelerate the movable body 8 etc. to the same speed as the vehicle due to the collision of the vehicle is Due to its large size, the compression energy of the coupler spring 5 alone is insufficient, and the insufficient energy acts on the vehicle as an impact force.

However, when the spacing member 13 is provided as in the present invention, the total mass of the coupler receiver 12 and the spacing member 13 is smaller than the mass of movable parts such as the movable main body 8, so when the collision speed is low, the spacing member 13 is the spacing member 1 without compression.
The effect is exactly the same as when there is no 3, but when the collision speed is high, the operation is different.

That is, after a collision, the coupler receiver 12, the spacing member 13, the movable body 8, etc. are accelerated by the compression energy of the coupler springs 5, but this compression energy alone is not enough to reach the same speed as the vehicle. do not have.

At this time, the coupler receiver 12 is accelerated to the same speed as the vehicle, but because its mass is small, the energy is small and the impact force is negligible.

If there is a speed difference between the coupler receiver 12 and the movable body 8, the spacing member 13 will be compressed, but at the time of compression, the movable body 8 etc. will be accelerated, and if this speed becomes the same speed as the vehicle, the spacing member will no longer be compressed. 13 is not compressed.

Since the reaction force when the spacing member 13 is compressed is F0, the initial impact force is alleviated by the spacing member 13.

Furthermore, if the reaction force F0 of the spacing member 13 is set approximately equal to the maximum resistance force of the coupler 3 including the spring 5, etc., the coupler 3 collides with the coupler receiver 12, compressing the entire stroke of the spring 5. At this time, the spacing member 13 is compressed, but the reaction force F0 is constant, so no force exceeding the maximum resistance force is applied to the coupler 3 and the metal fitting 6.

Therefore, the coupling mechanisms such as the coupler 3 and the metal fittings 6 will not be damaged by a collision.

If the speed of vehicle 1 is relatively high, the speed V2 is large.
Therefore, the resistance force F2 of the buffer 9 becomes large, and this resistance force F2 becomes the reaction force F of the spacing member 13.

If it is larger, the spacing member 13 will be compressed.

Even if the vehicle 1 is decelerated, if F2>Fo still holds, the front surface of the bogie frame 2 comes into contact with the protrusion 8c with the one-space member 13 being mostly compressed.

As a result, the movable main body 8 and the coupler receiver 12 receive the vehicle 1 at three points and move together as the vehicle 1 moves forward.

and. This movement is alleviated by the buffer 9, and the vehicle 1
is decelerated and eventually comes to a stop.

FIG. 6 shows this state.

In this case, the vehicle 1 can receive the resistance force at three points, so the force is dispersed and no damage occurs.

Moreover, the spacing member 13 is
As a result of the compression, the impact received by the vehicle 1 is weakened and damage is prevented.

Note that the maximum compression amount of the spacing member 13 is 1 as shown in FIG.
), the maximum distance due to variations in vehicle types is b, then the protrusion 8c is adjusted so that b<7.
By setting the length of , if the speed of vehicle 1 is relatively high, vehicle 1 will always receive 3 points even if the vehicle type is different.

Note that even if b<l, it is preferable to set b to a value close to l, since it is better to compress the spacing member 13 as much as possible in order to alleviate the impact.

Furthermore, if the speed of the vehicle 1 is sufficiently slow, the resistance force F3 of the shock absorber 9 at the time of a collision is smaller than the reaction force F0 of the spacing member 13, so the spacing member 13 is not compressed and the vehicle 1 immediately removes the shock absorber from the shock absorber 9. It is decelerated and stopped by the resistance force of 9.

As described above, the shock absorber-backed vehicle stopping device according to the present invention has the excellent effect of alleviating the initial impact when a vehicle collides, and of not damaging the vehicle even if the collision speed of the vehicle is relatively high. .

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of the shock absorber vehicle stop device according to the present invention, Fig. 2 is a side view, Fig. 3 is a front view, and Fig. 4 is the relationship between the displacement of the spacing member and the reaction force. Graphs showing this, FIGS. 5 and 6 are plan views at the time of collision. 1... Vehicle sail 2... Bogie frame, 3... Connector, 8... Movable body, 8a... Recessed portion, 8b... Groove, 8c... Projection, 9
...Buffer, 10...Rod, 11...Buffer material, 12...
...Coupler receiver, 13... Spacing member.

Claims (1)

[Claims] 1. A movable body having a recess in the center of the front surface and protrusions for receiving the front of the vehicle at both ends of the front surface, a shock absorber connected to the movable body via a rond and fixed to the ground, and the recess. a coupler receiver for receiving a vehicle coupler slidably disposed therein; and a spacing member provided between the rear surface of the coupler receiver and the bottom surface of the recess and having a constant reaction force against compression. The buffer has a resistance that is a function of the moving speed of the rond, and the spacing member has a reaction force set approximately equal to the maximum resistance force of the coupler, and a maximum compression amount of the spacing member. A shock absorber-retaining vehicle stopping device, characterized in that the distance is set larger than the distance between the front surface of the vehicle and the front surface of the protrusion when the coupler contacts the coupler receiver.